-- Chicago couple has been charged with a shocking in gruesome murder in the resort island of Bali. Indonesian police say that eighteen year old Heather Mac and her 21 year old boyfriend Tommy -- killed Max mother after an argument. And left her body in a suitcase in the trunk of a taxi. Authorities say the charges are based on witnesses in crime scene evidence and the murder was planned. We can't get -- -- it is this opted to leave the -- -- -- -- Nobody is 62 year old Sheila -- Ruiz smacked with sound stuffed inside a suitcase in the trunk of the taxi police say -- daughter in Cheever reportedly called for a taxi outside volleys -- -- Regis resort. At least several suitcases into the trunk he told the driver they were going back into the hotel -- check out. But they never came back. Hotel security guards found blood on one of the suitcases. And told the taxi driver to go to the police. At the station officers opened it up and discovered -- -- Mack's body. When -- and Shafer were arrested they told investigators they'd escaped a kidnapping by armed gang members. Who murdered her mother Sheila -- lived for years in the Chicago suburb of Oak Park. Police there said they were called to the home 86 times over the past decade. Mostly for domestic disturbances. Neighbors of the mother and daughter had a troubled relationship and argued frequently every family's -- issues in the interest and hope that this move. Make things better. Indonesian authorities say Heather -- and Tommy shaver were not being cooperative and were waiting for lawyers to arrive from the US. Karen Travers ABC news Washington.

This transcript has been automatically generated and may not be 100% accurate.